WHIRLING DUST COLLECTING DEVICE, HANDLE CLASS Russian patent published in 2009 - IPC A47L9/16 

FIELD: articles for personal use.

SUBSTANCE: whirling dust collecting device, handle class in intended for the vacuum cleaner use and is located on one side of the extensible tube of the vacuum cleaner. Whirling dust collector has connecting case to connect the extensible tube along the fluid medium and dust collecting removable case connected to the connecting case having air inlet and air escape hole. In the air escape hole there is a filter element to prevent reverse passage of polluting particles with the air into the air inlet. Filter element consists of filter's case and conic skirt connected with the bottom end of the filter and having the cut part formed on its certain area. The gap between the bottom end of the skirt and internal side face of the dust collecting case makes from 4 mm to 6 mm. In the bottom part of the dust collecting case there is a verge to prevent the rotation of polluting particles caused by the vortex air flow. The verge projects from the centre of the dust collecting case towards the internal side face of the dust collecting case.

EFFECT: invention improves the efficiency of collecting of the minute polluting particles and decreases the number of mounting operations reducing the costs for device's mounting.

6 cl, 8 dwg